2018 TESLA MODEL 3 Complaints

The contact owns a 2018 Tesla Model 3. The contact stated that while opening the doors of the vehicle, the driver's side seat back unintendedly reclined and pressed down on the rear seat, causing the cushion to become deformed. The contact manually used the seat controls to return the seat to an upright position. There was no warning light illuminated. The contact stated that the failure was intermittent and only occurred while the doors were opened. A Tesla service center was contacted; however, an appointment was not scheduled for diagnostic test. The contact was provided an estimate for the repair. The vehicle was not diagnosed or repaired. The failure mileage was approximately 95,000.

The contact owns a 2018 Tesla Model 3. The contact stated that there was a feature in the vehicle that allowed the front driver’s seat to automatically adjust according to the saved driver's profile. The contact stated that the driver’s seat back and forth movement to adjust to each driver's profile might have caused loose wire connection, resulting in error code: RCM_a021 (Front Left Safety Restraint System Fault) being displayed. The contact stated that the error message had been displayed intermittently. Upon investigating the failure online, the contact related the failure to the seat adjustment feature. The failure was reported to the manufacturer through the Tesla App; however, the contact had not yet received a response. The vehicle was not diagnosed or repaired after the failure. The failure mileage was approximately 55,000.

I am submitting this report to the National Highway Traffic Safety Administration regarding a recurring safety issue with my 2018 Tesla Model 3 involving unintended “phantom braking.” On multiple occasions, my vehicle has abruptly decelerated without any apparent obstacle or hazard present. These incidents have primarily occurred while using driver assistance features such as Autopilot and Traffic-Aware Cruise Control on highways and well-marked roads under normal driving conditions (clear weather, dry pavement, consistent traffic flow). The braking events are sudden and significant, creating a serious safety risk—particularly when other vehicles are following closely. In several instances, the deceleration was forceful enough that I believed a rear-end collision was likely. There were no visible triggers such as overpasses, shadows, vehicles merging, or roadside objects that would reasonably justify the system’s response. Below are details to assist your investigation: •Driver Assistance Features Active: Just cruise control, not auto pilot on these occasions •Weather/Road Conditions: Clear and dry •Frequency of Occurrence: This is an ongoing problem that has occurred dozens of times in the past few years. The March 30th incidents were only the most recent ones. •Any Warning Messages or Alerts: No This behavior appears unpredictable and difficult to anticipate or mitigate, increasing the risk of a crash. Given the potential safety implications, I respectfully request that NHTSA review this issue to determine whether it reflects a broader defect affecting other vehicles. Thank you for your attention to this matter.

My hard brake lines were corroded and had to be replaced on a 7 year old model 3 with 70k miles on it. The cost was over $4000 as battery has to come out and it's very labor intensive. Tesla offered no help with paying for this. They tried to say the car probably was in a very corrosive environment before I bought the car (I purchased it about a year ago). However, I've seen little to no corrosion anywhere on the car. I've decided to report this issue after talking with several lifelong mechanics who have said they have never heard of hard brake lines failing on a car with age and mileage that mine has. Also after searching owner groups I've heard from other owners that have had this same issue and it seems like a growing number especially in early model 3 cars. I was giving a warning about low brake fluid and advised not to drive the vehicle before getting it inspected.

The chrome trim on exterior door handle on driver side failed, peeling back to create a sharp, blade-like edge. When i tried opening the door, it sliced my finger causing bleeding and a trip to urgent care. Aparently many other consumers are facing the same problem. [XXX] INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

I was driving with Full Self Driving active on Sunday morning and my car came to a complete stop at a red light. Once the traffic cleared the car drove right through the red light and I was given a traffic citation by a police officer. The car did wait until there were no other cars present so I don't believe I was in any real danger but the fact that the car went through a red light while on full self driving violates the rules of the road which as we know is illegal. I have a video from my dash cam but this form doesn't appear to allow for video uploads.

Error code RCM_a021 front left safety restraint system fault. An issue that arises purely due to poor seat design. It is the fault of the seat pinching a wire from moving back and forth. This safety issue is an inevitability and not a one off chance. This issue is publicly noted on forms throughout all the years of this car’s production. This error results in airbags not being properly deployed in the event of an accident and the car not properly reading the passenger occupancy.

The front lower lateral link (rearward lower control arm) fastener/bolt completely backed out and fell off the vehicle while in motion, causing the lateral link to separate entirely from the subframe. This is the exact mechanical failure described in Tesla Recall Campaign 23V-235 (Service Bulletin SB-23-31-001), however, my specific VIN was not included in that recall. The vehicle and components are currently at an independent EV repair facility and are available for inspection upon request. Photographic evidence of the missing bolt and separated control arm has been retained. The separation of the lower lateral link caused an immediate and violent collapse of the front passenger-side suspension geometry. The affected wheel was no longer anchored to the vehicle frame, causing it to fold backward and grind heavily against the wheel well. To keep the vehicle moving straight, the steering wheel had to be turned to an extreme 45-degree angle. This resulted in a near-total loss of steering control. Had this fastener failed while traveling at highway speeds instead of low speeds, it would have resulted in an uncontrollable, catastrophic collision. Yes. The problem was physically confirmed and documented by an independent, EV-certified repair facility (EVFixMe/Shocker Motors in Costa Mesa, CA) once the vehicle was placed on a lift. The vehicle was physically inspected by an independent service center. The manufacturer (Tesla) was contacted via the Tesla App; however, they refused to perform a physical diagnosis without pre-authorization of a $2,600+ comprehensive suspension replacement estimate and stated the vehicle was out of warranty with no open recalls. There were no dashboard warning lamps, digital alerts, or error messages from the vehicle's computer system prior to the failure. The failure presented suddenly as a loud, painful metal-on-metal grinding noise accompanied by immediate, severe steering misalignment. Currently waiting on invoice from indy shop.

There is no checkbox for Full Self Driving (Supervised): 3 times in the last 4 weeks, my Tesla has become impatient at long red lights and lurches out into the intersection. I am very concerned because one of those times (first time) it did not creep forward, but just took off thru the red light. I had to accelerate thru to get ahead of those cars that still had the green light. Fortunately, nothing untoward happened, except scaring me! The other two times, I recognized what was happening and put on the brakes and removed from FSD mode. I have complained to Tesla and am asking for them to verify my FSD is up to date and this issue will be fixed. Needless to say, I have stopped using the FSD (Supervised) until this is all addressed.

The rear doors are not equipped with manual door releases. In the event of a crash or fire the rear seat passengers would be trapped and would only be able to exit over the front seats and front seat passengers. If the front doors were damaged or front passengers incapacitated the egress for the back seat passengers would be severely impacted. If a fire would occur the situation would be exacerbated. Tesla corrected this condition in later models by installing cable releases for the rear doors. Tesla has not responded with any positive response to our request to provide an upgrade and manual rear door releases.